At what age could your DC swim 50m?

DD1 was 4 when she got her 50m for backstroke. Now at a week off 7, she has swum 50 lengths of front crawl (1250m), is in Stage 8 (behind a few of her peers in fact!) and swims about 50-60 lengths in her hourlong lesson.

DD2 is now 4 and can swim about half a width!!

I got my 800m badge at the start of year 2. Sheer determination to catch up with dsis (who was definitely irritated). I've never been a particularly good swimmer, can do distance if I have to, but nothing more.

Dd1 swam 50m at age 5yo, year R, but she'd had lessons for a year at that point.
Dd2 (year 3) can swim 50m, just about, but only has had 3 lots of lessons in the second half of the summer term (outside school). She swims like a submarine She could manage 10m in year 1.

Dd's friend was picked out as having talent by a swimming school in year 1, a year before they usually took children on. She (I think) had her 250m, but more importantly had a naturally good technique and could do all sorts of other stuff like diving.

If other children have been having lessons and your dd gave up in year 1, then it's certainly possible she was considered good in year 1, and now a lot have overtaken her.

DS1 is just 4 and can swim 50m, he doesn't have a badge for it though as i think their technique has to be good to get it. He is in a stage 3 group. the tend to give the distance ones out when they do the same stage a few times.

Mine were 5 (reception) but by 6 were swimming 20 or so lengths in a lesson - two are now competitive swimmers, so much better than most of the other children at school

Some teachers just push children through distance badges as it makes parents feel they're getting their money's worth but they don't actually teach them proper technique

DD was swimming 6/7 25 me lengths in a her swimming lessons just after she truned 5 so recepetion year. She is good though and ahead of most of her peers in groups.